Production of triplets and cold radicals with a pulsed electric discharge in a pulsed supersonic bea]tl

It is found that a pulsed electric discharge in a pulsed supersonic expansion is an efficient source of rotationally cold triplet metastables and radicals. The spectra of both triplet argon (³P_2,0) and carbon monoxide (a ³ II,) as well as CCl radical (X²II) were recorded with mass selective resonant multiphoton ionization detection.